3e308fb0ee
remove condprop testcases.
...
llvm-svn: 86804
2009-11-11 05:25:16 +00:00
74bb710227
Add StringRef::split(StringRef), to complement StringRef::split(char).
...
llvm-svn: 86803
2009-11-11 05:19:11 +00:00
cd6291506b
Remove dead code.
...
llvm-svn: 86802
2009-11-11 04:10:24 +00:00
598825e832
Show command-line args and features passed into backend in debug output. Approved by Evan Cheng.
...
llvm-svn: 86797
2009-11-11 03:23:46 +00:00
6a77f51520
Add missing run line. Devang, please check.
...
llvm-svn: 86795
2009-11-11 03:10:03 +00:00
75b4d3562c
Fix -Asserts warning.
...
llvm-svn: 86794
2009-11-11 03:09:50 +00:00
8d92ec45c7
The TBB and TBH instructions for Thumb2 are really handy for jump tables, but
...
can only branch forward. To best take advantage of them, we'd like to adjust
the basic blocks around a bit when reasonable. This patch puts basics in place
to do that, with a super-simple algorithm for backwards jump table targets that
creates a new branch after the jump table which branches backwards. Real
heuristics for reordering blocks or other modifications rather than inserting
branches will follow.
llvm-svn: 86791
2009-11-11 02:47:19 +00:00
fde1f8d0d8
stub out some LazyValueInfo interfaces, and have JumpThreading
...
start using them in a trivial way when -enable-jump-threading-lvi
is passed. enable-jump-threading-lvi will be my playground for
awhile.
llvm-svn: 86789
2009-11-11 02:08:33 +00:00
d656f8ec4c
Fix test to work on every platform.
...
llvm-svn: 86786
2009-11-11 01:44:22 +00:00
5831283cb5
Fix test to work on every platform.
...
llvm-svn: 86785
2009-11-11 01:41:32 +00:00
b90dac093a
XFAIL for now.
...
llvm-svn: 86784
2009-11-11 01:41:10 +00:00
676f44062e
Make sure that the exception handling data has the same visibility as the
...
function it's generated for.
llvm-svn: 86779
2009-11-11 01:24:59 +00:00
9169a37daf
Add Triple::str() which returns the contents of the Triple as a string, as a more readable alternative to getTriple().
...
llvm-svn: 86773
2009-11-11 00:43:14 +00:00
78319c67ca
Do not assume first function scope seen represents current function.
...
llvm-svn: 86771
2009-11-11 00:31:36 +00:00
9806e4ab20
Add From arguments to StringRef search functions, and tweak doxyments.
...
Also, add unittests for find_first_of and find_first_not_of.
llvm-svn: 86770
2009-11-11 00:28:53 +00:00
bc299f0092
llvm-gcc/clang don't (won't?) need this hack.
...
llvm-svn: 86769
2009-11-11 00:28:38 +00:00
6e960c8657
oops, didn't mean to commit this, no harm, but add a todoops, didn't mean to commit this, no harm, but add a todoo
...
llvm-svn: 86768
2009-11-11 00:27:54 +00:00
741c94c719
Stub out a new lazy value info pass, which will eventually
...
vend value constraint information to the optimizer.
llvm-svn: 86767
2009-11-11 00:22:30 +00:00
3a2ae908fe
add a fixme
...
llvm-svn: 86766
2009-11-11 00:21:58 +00:00
c4e03b7ac7
remove redundant foward declaration. This function is already in
...
Analysis/Passes.h
llvm-svn: 86765
2009-11-11 00:21:21 +00:00
4450f26621
While creating DbgScopes, do not forget parent scope.
...
llvm-svn: 86763
2009-11-11 00:18:40 +00:00
12f146d8f7
Block terminator may be a switch.
...
llvm-svn: 86761
2009-11-11 00:00:21 +00:00
3835610902
jump threading does everything that condprop does any more. This passes
...
bootstrap on darwin i386.
llvm-svn: 86758
2009-11-10 23:54:10 +00:00
0169fd7c62
add a note
...
llvm-svn: 86756
2009-11-10 23:47:45 +00:00
8ff26038ef
I did this a week or two ago
...
llvm-svn: 86754
2009-11-10 23:40:49 +00:00
cdb7d44d6d
Ignore variable if scope info is not available.
...
llvm-svn: 86753
2009-11-10 23:20:04 +00:00
47739b20fd
Test this on Darwin only.
...
llvm-svn: 86752
2009-11-10 23:18:33 +00:00
6f7d5b22bb
Emit correct code when making a ConstantPool entry for a vector
...
constant whose component type is not a legal type for the target.
(If the target ConstantPool cannot handle this type either, it has
an opportunity to merge elements. In practice any target with
8-bit bytes must support i8 *as data*). 7320806 (partial).
llvm-svn: 86751
2009-11-10 23:16:41 +00:00
f6eeaebd76
Implement support to debug inlined functions.
...
llvm-svn: 86748
2009-11-10 23:06:00 +00:00
a5056f5b2b
in -dot-cfg and -dot-cfg-only, when rendering switch instructions,
...
put the switch value in the successor boxes like we put T/F for branches.
llvm-svn: 86747
2009-11-10 22:56:15 +00:00
9518fbb54e
implement a TODO by teaching jump threading about "xor x, 1".
...
llvm-svn: 86739
2009-11-10 22:39:16 +00:00
852d6d64ff
move some generally useful functions out of jump threading
...
into libanalysis and transformutils.
llvm-svn: 86735
2009-11-10 22:26:15 +00:00
de8d418ac3
Don't mark conditional branch instructions as control barriers.
...
llvm-svn: 86732
2009-11-10 22:16:57 +00:00
fc9469f311
Modify how the prologue encoded the "move" information for the FDE. GCC
...
generates a sequence similar to this:
__Z4funci:
LFB2:
mflr r0
LCFI0:
stmw r30,-8(r1)
LCFI1:
stw r0,8(r1)
LCFI2:
stwu r1,-80(r1)
LCFI3:
mr r30,r1
LCFI4:
where LCFI3 and LCFI4 are used by the FDE to indicate what the FP, LR, and other
things are. We generated something more like this:
Leh_func_begin1:
mflr r0
stw r31, 20(r1)
stw r0, 8(r1)
Llabel1:
stwu r1, -80(r1)
Llabel2:
mr r31, r1
Note that we are missing the "mr" instruction. This patch makes it more like the
GCC output.
llvm-svn: 86729
2009-11-10 22:14:04 +00:00
42c1d17dd1
Process InlinedAt location info.
...
Update InsertDeclare to return newly inserted llvm.dbg.declare intrinsic.
llvm-svn: 86727
2009-11-10 22:05:35 +00:00
02e2cee7dc
fix a crash in SCCP handling extractvalue of an array, pointed out and
...
tracked down by Stephan Reiter!
llvm-svn: 86726
2009-11-10 22:02:09 +00:00
4453dc976b
Teach PHIElimination to split critical edges when -split-phi-edges is enabled.
...
Critical edges leading to a PHI node are split when the PHI source variable is
live out from the predecessor block. This help the coalescer eliminate more
PHI joins.
llvm-svn: 86725
2009-11-10 22:01:05 +00:00
19f235e455
Refactoring: Extract method PHIElimination::isLiveOut().
...
Clean up some whitespace.
No functional changes.
llvm-svn: 86724
2009-11-10 22:00:56 +00:00
40b15f220d
improve comment.
...
llvm-svn: 86723
2009-11-10 21:45:09 +00:00
80e7e5a429
Make jump threading eliminate blocks that just contain phi nodes,
...
debug intrinsics, and an unconditional branch when possible. This
reuses the TryToSimplifyUncondBranchFromEmptyBlock function split
out of simplifycfg.
llvm-svn: 86722
2009-11-10 21:40:01 +00:00
87fe40b32d
Generalize lsr code that optimize loop to count down towards zero.
...
llvm-svn: 86715
2009-11-10 21:14:05 +00:00
1f31f6e265
Optimize test more.
...
llvm-svn: 86714
2009-11-10 21:02:18 +00:00
bb336a1987
make this handle redefinition of malloc function with different prototype correctly
...
llvm-svn: 86712
2009-11-10 19:53:28 +00:00
e034867587
Change Thumb1 address mode printing, instead of
...
[r0, #2 * 4]
Now
[r0, #8 ]
This makes Thumb2 assembly more uniform and frankly the scale doesn't add much.
llvm-svn: 86707
2009-11-10 19:48:13 +00:00
e6548f4106
Add a comment.
...
llvm-svn: 86706
2009-11-10 19:44:56 +00:00
23344095de
Add defensive break.
...
llvm-svn: 86705
2009-11-10 19:36:40 +00:00
b9415c7d9a
Add a monstrous hack to improve X86ISelDAGToDAG compile time.
...
- Force NDEBUG on in any Release build. This drops the compile time to ~100s
from ~600s, in Release mode.
- This may just be a temporary workaround, I don't know the true nature of the
gcc-4.2 compile time performance problem.
llvm-svn: 86695
2009-11-10 18:24:37 +00:00
8d4cde2b55
Fix obvious typo.
...
llvm-svn: 86694
2009-11-10 18:21:37 +00:00
b8f79ba10e
clarify logic.
...
llvm-svn: 86689
2009-11-10 17:00:47 +00:00
66df54f92c
CMake: Add Darwin-specific linker flags for building loadable modules
...
llvm-svn: 86684
2009-11-10 15:30:33 +00:00
1925d3a1d1
Teach DSE to eliminate useless trampolines.
...
llvm-svn: 86683
2009-11-10 13:49:50 +00:00
04e0c95248
Add brackets to make gcc-4.4 happy.
...
llvm-svn: 86681
2009-11-10 09:32:10 +00:00
dca0c28452
Codegen support for the llvm.invariant/lifetime.start/end intrinsics:
...
just throw them away.
llvm-svn: 86678
2009-11-10 09:08:09 +00:00
fcc77b1c02
Update computeArraySize() to use ComputeMultiple() to determine the array size associated with a malloc; also extend PerformHeapAllocSRoA() to check if the optimized malloc's arg had its highest bit set, so that it is safe for ComputeMultiple() to look through sext instructions while determining the optimized malloc's array size
...
llvm-svn: 86676
2009-11-10 08:32:25 +00:00
4744488e8d
Add ComputeMultiple() analysis function that recursively determines if a Value V is a multiple of unsigned Base
...
llvm-svn: 86675
2009-11-10 08:28:35 +00:00
17529ac0c5
optimize test
...
llvm-svn: 86672
2009-11-10 07:44:36 +00:00
1559bedcc7
unify the code that determines whether it is a good idea to change the type
...
of a computation. This fixes some infinite loops when dealing with TD that
has no native types.
llvm-svn: 86670
2009-11-10 07:23:37 +00:00
5b3def9b86
Simplify.
...
llvm-svn: 86668
2009-11-10 07:00:43 +00:00
9027147fb1
Reapply r86359, "Teach dead store elimination that certain intrinsics write to
...
memory just like a store" with bug fixed (partial-overwrite.ll is the
regression test).
llvm-svn: 86667
2009-11-10 06:46:40 +00:00
cbd18fc93d
refactor TryToSimplifyUncondBranchFromEmptyBlock out of SimplifyCFG.
...
llvm-svn: 86666
2009-11-10 05:59:26 +00:00
bbc1067001
CMake: Support for building llvm loadable modules.
...
llvm-svn: 86656
2009-11-10 02:45:37 +00:00
5a5b223c04
lit: Start documentation testing architecture.
...
llvm-svn: 86655
2009-11-10 02:41:27 +00:00
8acffa7dd5
lit: Add ExampleTests, for testing lit and demonstrating test suite features.
...
llvm-svn: 86654
2009-11-10 02:41:17 +00:00
4010a04034
lit: Fix bug in --show-suites which accidentally override the list of tests.
...
llvm-svn: 86653
2009-11-10 02:40:21 +00:00
05671ea10a
Fix PR5445
...
llvm-svn: 86651
2009-11-10 02:35:13 +00:00
ab799110c6
I misread the parens, not so redundant after all.
...
llvm-svn: 86648
2009-11-10 02:04:54 +00:00
38c44ea6b0
make jump threading recursively simplify expressions instead of doing it
...
just one level deep. On the testcase we go from getting this:
F1: ; preds = %T2
%F = and i1 true, %cond ; <i1> [#uses=1]
br i1 %F, label %X, label %Y
to a fully threaded:
F1: ; preds = %T2
br label %Y
This changes gets us to the point where we're forming (too many) switch
instructions on doug's strswitch testcase.
llvm-svn: 86646
2009-11-10 01:57:31 +00:00
ee89d5a4d0
remove some redundant parens.
...
llvm-svn: 86645
2009-11-10 01:56:04 +00:00
b8d7793628
CMake: Remove unnecessary `unset' which was not supported by old cmake
...
releases.
llvm-svn: 86644
2009-11-10 01:45:05 +00:00
42cc1806d8
Remove an unused variable.
...
llvm-svn: 86642
2009-11-10 01:37:57 +00:00
48079d4bf5
Minor code simplification.
...
llvm-svn: 86641
2009-11-10 01:36:20 +00:00
0d401124d1
Trim a bunch of unneeded code from this testcase.
...
llvm-svn: 86640
2009-11-10 01:33:08 +00:00
be11db6894
don't invalidate PN, rewrite of this code is in progress anyway.
...
llvm-svn: 86639
2009-11-10 01:19:06 +00:00
fb7f87d5a3
add a new SimplifyInstruction API, which is like ConstantFoldInstruction,
...
except that the result may not be a constant. Switch jump threading to
use it so that it gets things like (X & 0) -> 0, which occur when phi preds
are deleted and the remaining phi pred was a zero.
llvm-svn: 86637
2009-11-10 01:08:51 +00:00
b40d3f76a0
Fix DenseMap iterator constness.
...
This patch forbids implicit conversion of DenseMap::const_iterator to
DenseMap::iterator which was possible because DenseMapIterator inherited
(publicly) from DenseMapConstIterator. Conversion the other way around is now
allowed as one may expect.
The template DenseMapConstIterator is removed and the template parameter
IsConst which specifies whether the iterator is constant is added to
DenseMapIterator.
Actually IsConst parameter is not necessary since the constness can be
determined from KeyT but this is not relevant to the fix and can be addressed
later.
Patch by Victor Zverovich!
llvm-svn: 86636
2009-11-10 01:02:17 +00:00
a71e9d61be
factor simplification logic for AND and OR out to InstSimplify from instcombine.
...
llvm-svn: 86635
2009-11-10 00:55:12 +00:00
0d412c2528
Fixed to address code review. No functional changes.
...
llvm-svn: 86634
2009-11-10 00:48:55 +00:00
124fc5e252
Fix MemoryBuffer::getSTDIN to *not* return null if stdin is empty, this is a lame API.
...
Also, Stringrefify some more MemoryBuffer functions, and add two performance FIXMEs.
llvm-svn: 86630
2009-11-10 00:43:58 +00:00
cf89db135e
Allow targets to specify register classes whose member registers should not be renamed to break anti-dependencies.
...
llvm-svn: 86628
2009-11-10 00:15:47 +00:00
ccfdceb22c
pull a bunch of logic out of instcombine into instsimplify for compare
...
simplification, this handles the foldable fcmp x,x cases among many others.
llvm-svn: 86627
2009-11-09 23:55:12 +00:00
2ac504729b
Pass the (optional) TargetData object to ConstantFoldInstOperands
...
and ConstantFoldCompareInstOperands.
llvm-svn: 86626
2009-11-09 23:34:17 +00:00
beadc6e8c7
inline a simple function.
...
llvm-svn: 86625
2009-11-09 23:31:49 +00:00
c1f19071f8
rename SimplifyCompare -> SimplifyCmpInst and split it into
...
Simplify[IF]Cmp pieces. Add some predicates to CmpInst to
determine whether a predicate is fp or int.
llvm-svn: 86624
2009-11-09 23:28:39 +00:00
2524b04d0e
Now that the default is 'enabled,' a separate command line option for ARM is
...
not necessary.
llvm-svn: 86621
2009-11-09 23:11:45 +00:00
f8a74fc4a5
Add testcase for recent checkin.
...
llvm-svn: 86620
2009-11-09 23:10:49 +00:00
cdfb80de16
fix ConstantFoldCompareInstOperands to take the LHS/RHS as
...
individual operands instead of taking a temporary array
llvm-svn: 86619
2009-11-09 23:06:58 +00:00
3f94a132dd
Add StringSwitch::Cases overloads, for matching multiple strings to a single
...
value.
llvm-svn: 86618
2009-11-09 23:05:44 +00:00
800aad3dda
use instructionsimplify instead of a weak clone of ad-hoc folding stuff.
...
llvm-svn: 86616
2009-11-09 23:00:14 +00:00
47e3bcf180
Update test
...
llvm-svn: 86614
2009-11-09 22:59:01 +00:00
084a1b5581
stub out a new libanalysis "instruction simplify" interface that
...
takes decimated instructions and applies identities to them. This
is pretty minimal at this point, but I plan to pull some instcombine
logic out into these and similar routines.
llvm-svn: 86613
2009-11-09 22:57:59 +00:00
8483f12ac5
Remove dlsym stubs, with Nate Begeman's permission.
...
llvm-svn: 86606
2009-11-09 22:34:19 +00:00
1218b804fb
Enable dynamic stack realignment by default.
...
llvm-svn: 86604
2009-11-09 22:32:40 +00:00
2978ca7b79
stub out a new form of BasicBlock::RemovePredecessorAndSimplify which
...
simplifies instruction users of PHIs when the phi is eliminated. This
will be moved to transforms/utils after some other refactoring.
llvm-svn: 86603
2009-11-09 22:32:36 +00:00
55d3480769
Set dynamic stack realignment to real values.
...
llvm-svn: 86602
2009-11-09 22:32:03 +00:00
a951526510
Remove an unneeded #include.
...
llvm-svn: 86601
2009-11-09 22:28:30 +00:00
f04c4cdb27
Fix for 64-bit builds.
...
llvm-svn: 86600
2009-11-09 22:28:21 +00:00
787997f77e
Similar to r86588, but for Darwin this time.
...
llvm-svn: 86592
2009-11-09 21:45:26 +00:00
7307bff420
The jump table was being generated before the end label for exception handling
...
was generated. This caused code like this:
## The asm code for the function
.section __TEXT,__const
.align 2
lJTI11_0:
LJTI11_0:
.long LBB11_16
.long LBB11_4
.long LBB11_5
.long LBB11_6
.long LBB11_7
.long LBB11_8
.long LBB11_9
.long LBB11_10
.long LBB11_11
.long LBB11_12
.long LBB11_13
.long LBB11_14
Leh_func_end11: ## <---now in the wrong section!
The `Leh_func_end11' would then end up in the wrong section, causing the
resulting EH frame information to be wrong:
__ZL11CheckRightsjPKcbRbRP6NSData.eh:
.set Lset500eh,Leh_frame_end11-Leh_frame_begin11
.long Lset500eh ; Length of Frame Information Entry
Leh_frame_begin11:
.long Leh_frame_begin11-Leh_frame_common
.long Leh_func_begin11-.
.set Lset501eh,Leh_func_end11-Leh_func_begin11
.long Lset501eh ; FDE address range
`Lset501eh' is now something huge instead of the real value.
The X86 back-end generates the jump table after the EH information is
emitted. Do the same here.
llvm-svn: 86588
2009-11-09 21:20:14 +00:00
2745d19287
Print "..." instead of all the uninteresting register clobbers on call
...
instructions. This makes CodeGen dumps significantly less noisy.
Example before:
BL <ga:@bar>, %R0<imp-def>, %R1<imp-def,dead>, %R2<imp-def,dead>, %R3<imp-def,dead>, %R12<imp-def,dead>, %LR<imp-def,dead>, %D0<imp-def,dead>, %D1<imp-def,dead>, %D2<imp-def,dead>, %D3<imp-def,dead>, %D4<imp-def,dead>, %D5<imp-def,dead>, %D6<imp-def,dead>, %D7<imp-def,dead>, %D16<imp-def,dead>, %D17<imp-def,dead>, %D18<imp-def,dead>, %D19<imp-def,dead>, %D20<imp-def,dead>, %D21<imp-def,dead>, %D22<imp-def,dead>, %D23<imp-def,dead>, %D24<imp-def,dead>, %D25<imp-def,dead>, %D26<imp-def,dead>, %D27<imp-def,dead>, %D28<imp-def,dead>, %D29<imp-def,dead>, %D30<imp-def,dead>, %D31<imp-def,dead>, %CPSR<imp-def,dead>, %FPSCR<imp-def,dead>
Same example after:
BL <ga:@bar>, %R0<imp-def>, %R1<imp-def,dead>, %LR<imp-def,dead>, %CPSR<imp-def,dead>, ...
llvm-svn: 86583
2009-11-09 19:38:45 +00:00
ccb4584edd
Default-addressspace null pointers don't alias anything. This allows
...
GVN to be more aggressive. Patch by Hans Wennborg! (with a comment added by me)
llvm-svn: 86582
2009-11-09 19:29:11 +00:00
Chris Lattner